DUMORE

[ CHAIN SAW SHARPENERS; ] SELF-CONTAINED MACHINE TOOL UNITS ADAPTED TO BE MOUNTED DIRECTLY ON THE WORK FOR PERFORMING MILLING AND OTHER MACHINING OPERATIONS, AND FOR USE AS ATTACHMENTS ON LARGE MACHINE TOOL INSTALLATIONS; AUTOMATIC DRILL HEADS; TOOL POST GRINDERS; TOOL AND CUTTER GRINDERS; DRILLING AND GRINDING MACHINES; PORTABLE ELECTRIC GRINDERS AND FLEXIBLE SHAFT TOOLS; ELECTRIC DRILL HEADS HAVING AUTOMATIC FEED AND RETRACTION; AND HYDRAULIC AND ELECTRIC CONTROL MECHANISMS WHICH ARE PARTS OF METAL WORKING MACHINGS